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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: David Laight <David.Laight@ACULAB.COM>
Cc: Scott Wood <scottwood@freescale.com>,
	LinuxPPC-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: What is the reel purpose of in_beXX() and out_beXX() fonctions ?
Date: Tue, 28 Oct 2014 08:11:26 +1100	[thread overview]
Message-ID: <1414444286.364.193.camel@pasglop> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D1C9DFACE@AcuExch.aculab.com>

On Mon, 2014-10-27 at 15:05 +0000, David Laight wrote:
> 
> Unfortunately the functions sometimes contain additional (often
> unneeded) 
> sequencing instructions - the driver may be able to perform multiple 
> operations between the sequencing instructions.

That's in part why some folks are working on proper relaxed accessors
(see Will Deacon's stuff)

Cheers,
Ben.

  reply	other threads:[~2014-10-27 21:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-27 12:52 What is the reel purpose of in_beXX() and out_beXX() fonctions ? leroy christophe
2014-10-27 15:05 ` David Laight
2014-10-27 21:11   ` Benjamin Herrenschmidt [this message]
2014-10-27 16:45 ` Scott Wood

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